macadamize vs macadam

macadamize is not a noun while macadam is a noun.

Word	Noun	Adjective	Verb	Adverb
macadamize	No	No	Yes	No
macadam	Yes	No	Yes	No

As verbs, macadamize and macadam are synonyms defined as:

Other synonyms of macadamize include macadamise, tarmac.

macadamize (noun)	macadam (noun)
	a paved surface having compressed layers of broken rocks held together with tar
	broken stone used in macadamized roadways

macadamize (verb)	macadam (verb)
surface with macadam	surface with macadam